137 lines
4.1 KiB
C++
137 lines
4.1 KiB
C++
/* -*-c++-*-
|
|
* Copyright (C) 2008 Cedric Pinson <mornifle@plopbyte.net>
|
|
*
|
|
* This library is open source and may be redistributed and/or modified under
|
|
* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
|
|
* (at your option) any later version. The full license is in LICENSE file
|
|
* included with this distribution, and on the openscenegraph.org website.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* OpenSceneGraph Public License for more details.
|
|
*/
|
|
|
|
#include <iostream>
|
|
#include <osg/Geometry>
|
|
#include <osg/MatrixTransform>
|
|
#include <osg/Geode>
|
|
#include <osgViewer/Viewer>
|
|
#include <osgViewer/ViewerEventHandlers>
|
|
#include <osgGA/TrackballManipulator>
|
|
#include <osgGA/StateSetManipulator>
|
|
#include <osgUtil/SmoothingVisitor>
|
|
#include <osg/io_utils>
|
|
|
|
#include <osgAnimation/MorphGeometry>
|
|
#include <osgAnimation/BasicAnimationManager>
|
|
|
|
#include <osgDB/ReadFile>
|
|
#include <osgDB/WriteFile>
|
|
|
|
struct GeometryFinder : public osg::NodeVisitor
|
|
{
|
|
osg::ref_ptr<osg::Geometry> _geom;
|
|
GeometryFinder() : osg::NodeVisitor(osg::NodeVisitor::TRAVERSE_ALL_CHILDREN) {}
|
|
void apply(osg::Geode& geode)
|
|
{
|
|
if (_geom.valid())
|
|
return;
|
|
for (unsigned int i = 0; i < geode.getNumDrawables(); i++)
|
|
{
|
|
osg::Geometry* geom = dynamic_cast<osg::Geometry*>(geode.getDrawable(i));
|
|
if (geom) {
|
|
_geom = geom;
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
};
|
|
|
|
osg::ref_ptr<osg::Geometry> getShape(const std::string& name)
|
|
{
|
|
osg::ref_ptr<osg::Node> shape0 = osgDB::readRefNodeFile(name);
|
|
if (shape0)
|
|
{
|
|
GeometryFinder finder;
|
|
shape0->accept(finder);
|
|
return finder._geom;
|
|
}
|
|
else
|
|
{
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
|
|
int main (int argc, char* argv[])
|
|
{
|
|
osg::ArgumentParser arguments(&argc, argv);
|
|
osgViewer::Viewer viewer(arguments);
|
|
|
|
osgAnimation::Animation* animation = new osgAnimation::Animation;
|
|
osgAnimation::FloatLinearChannel* channel0 = new osgAnimation::FloatLinearChannel;
|
|
channel0->getOrCreateSampler()->getOrCreateKeyframeContainer()->push_back(osgAnimation::FloatKeyframe(0,0.0));
|
|
channel0->getOrCreateSampler()->getOrCreateKeyframeContainer()->push_back(osgAnimation::FloatKeyframe(1,1.0));
|
|
channel0->setTargetName("MorphNodeCallback");
|
|
channel0->setName("0");
|
|
|
|
animation->addChannel(channel0);
|
|
animation->setName("Morph");
|
|
animation->computeDuration();
|
|
animation->setPlayMode(osgAnimation::Animation::PPONG);
|
|
osgAnimation::BasicAnimationManager* bam = new osgAnimation::BasicAnimationManager;
|
|
bam->registerAnimation(animation);
|
|
|
|
osg::ref_ptr<osg::Geometry> geom0 = getShape("morphtarget_shape0.osg");
|
|
if (!geom0) {
|
|
std::cerr << "can't read morphtarget_shape0.osg" << std::endl;
|
|
return 0;
|
|
}
|
|
|
|
osg::ref_ptr<osg::Geometry> geom1 = getShape("morphtarget_shape1.osg");
|
|
if (!geom1) {
|
|
std::cerr << "can't read morphtarget_shape1.osg" << std::endl;
|
|
return 0;
|
|
}
|
|
|
|
// initialize with the first shape
|
|
osgAnimation::MorphGeometry* morph = new osgAnimation::MorphGeometry(*geom0);
|
|
morph->addMorphTarget(geom1.get());
|
|
|
|
viewer.setCameraManipulator(new osgGA::TrackballManipulator());
|
|
|
|
|
|
osg::Group* scene = new osg::Group;
|
|
scene->addUpdateCallback(bam);
|
|
|
|
osg::Geode* geode = new osg::Geode;
|
|
geode->addDrawable(morph);
|
|
osgAnimation::UpdateMorph* morphupdate=new osgAnimation::UpdateMorph("MorphNodeCallback");
|
|
morphupdate->addTarget("MorphNodeCallback");
|
|
geode->addUpdateCallback(morphupdate);
|
|
scene->addChild(geode);
|
|
|
|
viewer.addEventHandler(new osgViewer::StatsHandler());
|
|
viewer.addEventHandler(new osgViewer::WindowSizeHandler());
|
|
viewer.addEventHandler(new osgGA::StateSetManipulator(viewer.getCamera()->getOrCreateStateSet()));
|
|
|
|
// let's run !
|
|
viewer.setSceneData( scene );
|
|
viewer.realize();
|
|
|
|
bam->playAnimation(animation);
|
|
|
|
|
|
while (!viewer.done())
|
|
{
|
|
viewer.frame();
|
|
}
|
|
|
|
osgDB::writeNodeFile(*scene, "morph_scene.osg");
|
|
|
|
return 0;
|
|
}
|
|
|
|
|